Breaking: #96526 - Removed hooks for modifying page module content

See Issue #96526

Description

The previously available hooks to modify the header $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/db_layout.php']['drawHeaderHook'] and footer $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/db_layout.php']['drawFooterHook'] content of the page module have been removed in favor of a new PSR-14 Event TYPO3\CMS\Backend\Controller\Event\ModifyPageLayoutContentEvent.

The public method PageLayoutController->getModuleTemplate() has been removed as well, since it was only used for the removed hooks.

Impact

Registering any of the mentioned hooks does no longer have any effect in TYPO3 v12.0+. The extension scanner will detect usages as strong match.

The method PageLayoutController->getModuleTemplate() is no longer available and will therefore lead to PHP errors when called from extension code. The extension scanner will detect usages as weak match.

Affected Installations

TYPO3 installations using one of the mentioned hooks or calling PageLayoutController->getModuleTemplate() in custom extension code.

Migration

Replace the hooks with the new PSR-14 ModifyPageLayoutContentEvent.